The lack of anime with healthy and realistic representation of MLM and WLW relationships is not it.

idk dude I don't think anime is going to include any actual queer characters since lgbtqai+ is such a sensitive and controvertial subject. They get backlash for every little thing from the western community so yea, it'll probably take awhile. Also there's other than just wholesome queer shit, it'd be nice to have messy queer stories too. Like yknow we're normal people too, our lives arent all like Wattpad's cliche gay best friend.